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公开(公告)号：JPH03139599A
公开(公告)日：1991-06-13
申请号：JP27592689
申请日：1989-10-25
Applicant: BRIDGESTONE CORP
Inventor： KURACHI IKUO , TANAKA MITSUYA , ISHINO YUICHI , SAITO TASUKU
IPC: C10M169/04 , C10M171/00 , C10M171/06 , C10N20/00 , C10N40/14
Abstract: PURPOSE:To obtain an electroviscous fluid which can reveal a high electroviscous effect with less power consumption by using a phosphazene as an oily medium and a powder specified in both specific gravity and moisture content. CONSTITUTION:An electroviscous fluid comprising a dispersion of a powder in an oily medium excellent in electrical insulating properties, wherein a compound containing P=N bonds is used as the oily medium and a powder having a specific gravity of 1.2 or higher and a moisture content of 4wt.% or less is used as the powder. Compounds containing P=N bonds are a group of compounds generally called phosphazene, among which compounds selected from the following groups (1) and (2), having high chemical stability, excellent electrical insulating properties, and a melting point of below 40 deg.C are preferably used: (1) a group of compounds of a cyclic structure, having at least three P=N bonds in the molecule and (2) a group of compounds of a chain structure having continuously repeated P=N bonds. Examples of the powder include non-oxide powders, such as a carbon powder, as SiC powder, TiC powder, and a B4C powder, and oxide powders comprising zeolite, amorphous silica, barium titanate, etc.
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公开(公告)号：JPH03139598A
公开(公告)日：1991-06-13
申请号：JP27592889
申请日：1989-10-25
Applicant: BRIDGESTONE CORP
Inventor： ISHINO YUICHI , IINO TAKAHIRO , MARUYAMA TAKAYUKI , OSAKI TOSHIYUKI , KAWAGOE TAKAHIRO , SAITO TASUKU
IPC: C08J3/11 , C08J3/12 , C08L79/00 , C10M149/12 , C10M151/04 , C10M171/00 , C10N20/00 , C10N20/06 , C10N40/14 , C10N60/00 , H01B1/12
Abstract: PURPOSE:To obtain an electroviscous fluid capable of revealing a high electroviscous effect in both low and high temperature regions and improved in long-term stability by combining a fine organic conductive polymer powder having a specified electron spin density with an electrical insulating oil. CONSTITUTION:This electroviscous fluid is formed from a fine organic conductive polymer powder having an electron spin density of at least 10 /g and an electrical insulating oil. As the conductive polymer, those obtained by oxidative polymerization followed by dedoping are used. Examples of the conductive polymer include a polyaniline and its derivative, a polypyrrole, and a polythiophene, among which a polyaniline or its derivative is preferably used. Dedoping can be effected by electrochemical reduction, chemical reduction with a catalyst such as hydrazine, alkali treatment, etc.; however, alkali treatment is desirable since the conductivity of the conductive polymer can be reduced most effectively by adjusting the pH.
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公开(公告)号：JPH03139597A
公开(公告)日：1991-06-13
申请号：JP27592789
申请日：1989-10-25
Applicant: BRIDGESTONE CORP
Inventor： KURACHI IKUO , TANAKA MITSUYA , ISHINO YUICHI , SAITO TASUKU
IPC: C10M137/16 , C10N40/14
Abstract: PURPOSE:To stably raise the electroviscous effect without accompanied by an increase in current value by adding a specified amount of a phosphazene to an electroviscous fluid comprising a dispersion of an organic or inorganic powder in an oily medium. CONSTITUTION:An electroviscous fluid comprising a dispersion of an organic or inorganic powder in an oily medium excellent in electrical insulating properties, which has at least 0.001wt.% compound containing P=N bonds added thereto. Examples of the oily medium include a silicone oil, a mineral oil, and a paraffin oil, among which a silicone oil is preferably used because it can be used even when in direct contact with a material having rubber-like elasticity. Examples of the powder as the disperse phase include an SiC powder, a TiC powder, a B4C powder, and a carbonaceous powder. Compounds containing P=N bonds are generally called phosphazene and include the following three types: (1) a group of compounds of a cyclic structure, having at least three P=N bonds in the molecule; (2) a group of compounds of a chain structure having continuously repeated P=N bonds; and (3) a group of compounds of a three-dimensional network structure formed by P=N bonds.
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公开(公告)号：JPH0211101A
公开(公告)日：1990-01-16
申请号：JP16141988
申请日：1988-06-29
Applicant: BRIDGESTONE CORP
Inventor： YAMADA TADATOSHI , SAITO TASUKU
Abstract: PURPOSE:To improve a kick-out, to facilitate the execution of a swing, to improve a walking efficiency and to decrease a tiredness by specifying the hobnail positions of a sole. CONSTITUTION:In the toe part of the sole, hobnails 1 and 2 are arranged in the positions corresponding to a first finger and a second finger, respectively. In a stamping part, between the circumferences of two cocentric circles with diameters 6-9cm of a first circle having a center on the bending position of a foot and, simultaneously, having the circumference in the approximate outline of the stamping part of a sole and second circle in which a radius is smaller by 0.5-1.0cm, a hobnail 3 is arranged in the position in which a foot pressure is high at an internal side, a hobnail 4 is arranged separately by 3-5cm from the hobnail 3, a hobnail 5 is arranged in the position approximately on a foot reference line l1 at the toe side, a hobnail 6 is arranged in the position corresponding to a fifth finger at an external side, and hobnails 7 and 8 are arranged in the positions separate by 3-5cm from each other off a maximum foot pressure position at the external side. At a heel internal side, hobnails 9 and 10 are arranged separately by 2.0-3.5cm at an equal interval from a foot pressure central position, and at the external side hobnails 11 and 12 are arranged separately by 3.0-5.0cm in the same way. Thus, the function lowered in middle to high generations can be supplemented at the time of swing and the time of walking.
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公开(公告)号：JPS6289750A
公开(公告)日：1987-04-24
申请号：JP13117886
申请日：1986-06-06
Applicant: BRIDGESTONE CORP
Inventor： KAKIUCHI SHINICHI , SAITO TASUKU , TOMITA SEISUKE
Abstract: PURPOSE:To provide a rubber composition having high impact resilience and giving a solid golf ball having improved initial speed, by using two kinds of polybutadienes each having a specific Mooney viscosity and synthesized by the use of a specific catalyst and combining the rubbers at a specific ratio. CONSTITUTION:The objective rubber composition contains (A) 100pts.(wt.) of a polybutadiene containing >=40% cis-1,4-bond and produced by blending (i) a polybutadiene synthesized by using an Ni-based and/or Co-based catalyst and having a Mooney viscosity (100 deg.C) of 70-100 with (ii)N
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Patent Agency Ranking
公开(公告)号：JPS622101A
公开(公告)日：1987-01-08
申请号：JP14115785
申请日：1985-06-27
Applicant: BRIDGESTONE CORP
Inventor： YAMADA TADATOSHI , SAITO TASUKU , MAIE KAZUO
IPC: G01B7/16
Abstract: PURPOSE:To measure rapidly and easily dynamic strain deformations of human body,by using strain gauges adhered with resistance wire strain gauges an top of crests of a ribbon-type corrugated thin metallic sheet. CONSTITUTION:The strain gauge is composed of a ribbon body 1 of thin metallic sheet bent into corrugations and resistance wire strain gauges 2 adhered on top of the corrugations. When measuring, the strain gauge is adhered to the specimen with adhesive compound or tape. On this occasion as the ribbon body 1 is of a corrugated form, it follows a strain in a flexible manner and the amount of strain is detected by the strain gauge 2. Thus, dynamic strain deformations of human body on the occasion of design of wooden pattern of shoes and dress style can be measured rapidly and easily.
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公开(公告)号：JPS61247420A
公开(公告)日：1986-11-04
申请号：JP8962485
申请日：1985-04-25
Applicant: BRIDGESTONE CORP
Inventor： NISHIKAWA TADAKAZU , SAITO TASUKU
IPC: A47G27/02
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公开(公告)号：JPS61228040A
公开(公告)日：1986-10-11
申请号：JP6957785
申请日：1985-04-01
Applicant: BRIDGESTONE CORP
Inventor： SAITO TASUKU , ONO KIYOSHI , YAMADA TADATOSHI
Abstract: PURPOSE:A composition for providing a non-pressure ball having the same physical properties as those of an internal-pressure tennis ball, improved elasticity and resistance to deformation such as ball hardness, etc., obtained by blending rubber consisting essentially of a diene polymer with organic short fibers and a thermosetting resin. CONSTITUTION:Rubber consisting essentially of a diene polymer is blended with organic short fibers and a thermosetting resin.A phenolic resin is used as the thermosetting resin, and it may be blended in a state of raw material substances (a phenol and a substrate to make it into a three-dimensional polymer, preferably resorcin and hexamethylenetetramine). Polyester, wool, etc., are used as the organic short fibers and the short fibers having a ratio of length/diameter of 10-500, preferably 20-300 are blended.
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公开(公告)号：JPS61228039A
公开(公告)日：1986-10-11
申请号：JP6957685
申请日：1985-04-01
Applicant: BRIDGESTONE CORP
Inventor： ONO KIYOSHI , SAITO TASUKU , KITAYAMA MOTOZUMI , FUKUURA YUKIO
Abstract: PURPOSE:A composition for providing non-pressure ball having the same physical properties as those of an internal-pressure tennis ball and an improved hitting feeling, obtained by blending rubber consisting essentially of a diene polymer with a thermoplastic resin and a thermosetting resin. CONSTITUTION:Rubber consisting essentially of a diene polymer is blended with a thermoplastic resin and a thermosetting resin. A styrenic resin containing 60-100wt% styrene content is preferable as the thermoplastic resin. A phenolic resin, especially resorcin, is preferable as the thermosetting resin. The amount of the plastic resin blended is 3-40pts.wt. preferably 5-35pts.wt. based on 100pts.wt. rubber and the amount of the thermosetting resin is 0.1-20pts.wt. based on 100pts.wt. of the rubber + the thermoplastic resin.
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公开(公告)号：JPH08253788A
公开(公告)日：1996-10-01
申请号：JP9723696
申请日：1996-04-19
Applicant: BRIDGESTONE CORP
Inventor： ISHINO YUICHI , OSAKI TOSHIYUKI , ENDO SHIGEKI , TOMITA SEISUKE , MARUYAMA TAKAYUKI , FUKUYAMA YOSHIKI , SAITO TASUKU
IPC: C10M125/02 , C10M169/04 , C10N20/02 , C10N20/06 , C10N40/14
Abstract: PURPOSE: To obtain an electroviscous liquid which highly rapidly becomes viscous in a wide temp. range upon application of a DC or AC electric field, is reduced in power consumption, and can retain the electroviscous properties over long. CONSTITUTION: The liquid comprises 1-60wt.% fine carbonaceous particles having an average particle diameter of 0.01-100μm as a dispersed phase and 99-40wt.% insulating oil having a viscosity at room temp. of 0.65-500cSt as a liquid phase. The particles have a carbon content of desirably 80-97wt.%, preferably 90-95wt.% and a C/H ratio (carbon/hydrogen atom ratio) of desirably 1.2-5, preferably 2-4.
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